Motor-driven variable weight exercise device with adjustable chassis body

ABSTRACT

The invention herein relates to a variable weight exercise machine comprising a motor driven carriage assembly that moves along a linear path creating a variable resistant force against which the user exerts an opposite force. The chassis body and frame of said device having a design that can be modularly configured in coordination with said carriage element, enabling a plurality of horizontal, vertical, or angular concentric or eccentric exercise movements.

CROSS REFERENCES

This application is a non-provisional utility patent application claiming benefit of priority to and incorporating by reference in full the provisional patent application No. 62/663,814, filed Apr. 27, 2018, in accordance with 35 U.S.C. § 119.

FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER LISTING APPENDIX

Not applicable.

COPYRIGHT NOTICE

A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or patent disclosure as it appears in the Patent and Trademark office, patent file or records, but otherwise reserves all copyright rights whatsoever.

BACKGROUND OF THE INVENTION Field of the Invention

The present inventive subject matter relates to a device, method, and system for a variable exercise machine having a variable linear carriage held within a unitary chassis body and frame.

Background

Portable exercise machines of the existing art have traditionally been designed with individual methods of exercise in mind. In the realm of concentric and eccentric exercises by way of weight machines, such devices have been designed for purchase or use among a commercial market or individual retail market. In the commercial realm, for example private health clubs where machinery is shared by a community of users, it had been preferable for each machine to have limited but defined purpose and design. It is not uncommon in these shared environments to find a variety of machines, each for a specialized method of exercise. The diversity and plurality of exercise options allow users to share equipment interchangeably without monopolizing space for too long. Machines or devices in the commercial context tend to be larger and heavier as well in order to sustain long term and extensive usage by many different people. The interest to sustain extensive long-term heavy usage in the commercial setting directs design towards machinery with heavier gauge and limited configurations.

Few weight machines have been designed with an equivalent durability for the individual retail market. In part, this is due to the fact that product distribution at the individual retail level is affected by product weight and size. Lighter weight designs are preferred simply to enable sales and distribution within the market. Slimness in design is also another preferred feature to accommodate spatial limitations of standard residential homes. The size and weight limitations of personal gym equipment often make them less durable for the desired level of exercise sought by the user. Dimensional and weight restrictions further make it difficult to achieve adjustable configurations among at home exercise machines.

U.S. Pat. Nos. 8,388,499 and 8,105,206 disclose two variable weight exercise machines containing a carriage moved along a linear path by screw mechanism that is motor driven. These devices are designed primarily for commercial use. They cannot be reconfigured and are limited in modes of exercise. U.S. Pat. No. 7,892,159 discloses a device having a central screw element attached to a motor drive system with parallel support rails for transport of a device along a linear path. Similarly, this device is non-adjustable in its configuration and provides a very slim design that may not safely or effectively endure extensive usage even in a home environment.

There remains a need in the art for a weight machine that can be accessible to a residential market by offer of a lighter weight frame (compared to commercial machines) yet having the stability and durability of a commercial machine, but offering a variety of exercise modes and variable weight challenges all within a single frame system.

SUMMARY OF THE INVENTION

The present invention is best understood by reference to the detailed figures and description set forth herein.

Embodiments of the invention are discussed below with reference to the Figures. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these limited embodiments. For example, it should be appreciated that those skilled in the art will, in light of the teachings of the present invention, recognize a multiplicity of alternate and suitable approaches, depending upon the needs of the particular application, to implement the functionality of any given detail described herein, beyond the particular implementation choices in the following embodiments described and shown. That is, there are numerous modifications and variations of the invention that are too numerous to be listed but that all fit within the scope of the invention. Also, singular words should be read as plural and vice versa and masculine as feminine and vice versa, where appropriate, and alternative embodiments do not necessarily imply that the two are mutually exclusive.

The present invention will now be described in detail with reference to embodiments thereof as illustrated in the accompanying drawings.

Detailed descriptions of the preferred embodiments are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.

It is to be understood that any exact measurements, dimensions or particular construction materials indicated herein are solely provided as examples of suitable configurations and are not intended to be limiting in any way. Depending on the needs of the particular application, those skilled in the art will readily recognize, in light of the following teachings, a multiplicity of suitable alternative implementation details.

The inventor herein has developed a new form of a variable weight exercise machine comprising a motor driven carriage assembly that moves along a linear path creating a variable resistant force against which the user exerts an opposite force. From the broadest context, the device comprising a unitary chassis body and frame containing a motor driven linear actuator capable of moving between variable locations along its linear path. Said motor driven linear actuator system having a carriage element thereon that is connectable to a plurality of elements that extend beyond the chassis body, interacting with the user. The chassis body and frame having a design that can be modularly configured in coordination with said carriage element, enabling a plurality of horizontal, vertical, or angular concentric or eccentric exercise movements. The material composition of said frame and extension elements of this invention should comprise durable hard material such as metal including without limitations, steel or aluminum, which can withstand the force of the user against the motorized linear actuator.

The motorized linear actuator system as well as the chassis of this invention may be horizontally or vertically positioned and may additionally provide options for extensions connectable to said chassis frame, protruding at any given angle from its base connection to said chassis frame. The preferred embodiment of this invention however provides for a horizontally positioned chassis with options for attachments and extensions to protrude therefrom. The motorized linear actuator system may comprise a motor drive attached to one or more rotating circular belts, each said belt of said one or more rotating circular belts rotatable along the length of said chassis frame, each traveling along a guide track (alternatively referable as a guide channel) along either side of said chassis frame in parallel manner. Said belts in this case is preferably a durable material able to withstand the force exerted thereon, such as metal chain.

Alternatively, said motorized linear actuator system drive system may comprise one or more threaded screw drives, said one or more threaded screw drives held within a guide channel or guide track either centrally along the chassis frame or along either side of said chassis frame. The directional movement of each threaded screw drive (rightward versus leftward rotation) is determined by a motorized drive system. If it is intended for two or more threaded screw drives to rotate in opposing directions, then each said directional movement will require its own separate motor drive connection to control each such movement. Each threaded screw drive is capable of carrying one or more carriage elements for variable linear traversal along the length of said chassis.

Yet another embodiment of the invention comprising a single threaded screw drive centrally positioned along the length of said chassis frame, wherein said threaded screw drive is connected to a carriage thereon which travels along the length of said chassis frame. Said carriage may further be supported on either its right or left sides, or both sides, with rollers that traverse two opposing parallel guide track along the length of said chassis frame.

The carriage element of this device provides a platform that is attachable to either an external platform or alternatively to external tools such as wires, chains, or additional frame elements, all of which are intended to be moved and driven by said drive system and carriage element. The external platform attachable to said carriage element may comprise a seat that carries a user seated thereon. Alternatively, the external platform may comprise a vertical frame extendable from said carriage above said chassis frame such that said vertical frame may be moved to variable locations along the length of said horizontal chassis frame. Said vertical frame extension may comprise a vertically positioned panel or plate having a planar surface (also referable herein as a vertical panel). The user would be seated on a stationary (nonmoving) platform while exerting force against said planar surface of said vertically positioned plate which moves along the length of said chassis frame.

Said carriage element may further provide connection means that allow a length of flexible and durable exercise strap to be attached to said carriage element, the farther portion of said strap looping through or around a leveraging mean (i.e. an eye hook, J hook, cross-bar, etc.) such that when the strap is pulled by said carriage at its first end, said strap is leveraged against said leveraging means and pulls away from the user seated on an external platform (i.e. seat) that is also attached to and above said carriage element. The leveraging means may in fact be positioned at any location along the chassis frame or extensions therefrom to allow for variable angular bodily exercises and movements by pulling against a strap element. Said leveraging means may comprise perforations cut through said chassis frame wherein said straps would loop therethrough. Alternatively, said leveraging means may comprise looping means (i.e. eye hooks or J hooks) that are either permanently attached or removably attachable to any location on said chassis frame or said extensions therefrom. Said leveraging means may also comprise cross-bars that extend from said chassis frame. Said leveraging means importantly must be securely connectable to said chassis frame or extensions therefrom to not dislodge against an exerted force, may have loose straps sleeve therethrough or therearound, and allows for sliding movement of said straps therethrough or therearound. The external tools, external platforms, perforations, and other such leveraging means are removably attachable to said carriage to enable variable exercise options thereon, for ease of storage, and for ease in packaging for improved transport.

A more specific embodiment of the invention provides for a variable load resistant exercise machine that is enabled by a motor-driven linear load transfer system contained within a singular chassis frame and body that is capable of modular configurations. The linear load transfer system comprising a linear actuator such as a threaded screw drive mechanism connected to a motor drive. Said threaded screw drive being centrally disposed within said chassis along its length. Said threaded screw drive further connected to a chassis element that traverses the length of said threaded screw drive in variable manner in terms of speed and locational position. Said carriage element further stabilized on either side by rollers or wheels that traverse along parallel guide tracks along the length of said chassis to its right and left sides. By this invention, the chassis comprise a long horizontal frame that is lower to the ground and provides a wider and lower center of gravity for the user seated thereon. The two parallel guide tracks along the length and sides of the chassis helps to balance and stabilize the shifting weight of a user seated thereon. The parallel guide tracks provide stable support for directional movement of the carriage along the length of the body and spreads the weight of the device and user across a wider surface area. The motor drive and linear transfer element may be manually, digitally, or electronically controllable by direct or remote communication through sensing elements. A digital panel containing preconfigured software language is connectable to said device of this invention, receiving user related electrical input from said device that is translatable into performance data that is viewable and readable from said device panel. Said viewable digital panel is an optional feature to this invention and may be detachable for a more basic model of the device. Because the device operates by an electrical motor drive system, it is feasible to control the device by push button means either directly or remotely. Remote control may be achieved by any wireless digital, electrical, or radio signal system such as a key-fob device.

The body of this device having strategic perforations on its sides along its length to allow cross-bar elements to be sleeved through at prescribed locations for additional user options. At least one or more cross-bar is sleevable through the cross-section of said chassis to maintain structural integrity of the device. The cross-bar helps to prevent warping of the chassis frame, which otherwise would cause a loss of parallel positioning of said parallel guard rails and thus block linear transfer. The cross-bar may terminate in a fixed (i.e bolted) manner at the side surface of said chassis in flush manner or alternatively extend beyond the side surfaces of said chassis in removable manner, outward towards the external environment. By extending externally beyond the surface of said chassis, the user may utilize the extended portion of the cross-bar as leverage. The extended cross-bar portion may either serve as a leveraging means whereby straps may wrap therearound for a pulling exercise. It may alternatively serve as foot rest for the user, leveraging the user's lower body against opposing weights.

Additional cross-bar elements may relate to a back rest element. Said back rest element being hingely attached to the top of said chassis and is able to toggle or swivel forwards and backwards, ultimately resting against a cross-bar. The side surfaces along the body of said chassis having strategically placed perforations would allow said cross bar to be sleeved through a location either frontward or rearward of said back rest in either its forward or rearward position, creating a forward or rearward seating option on said chassis. When said cross-bar is removed away from the back-support element, the back-rest element would decline fully to a horizontal position overtop said chassis. Said back-rest element also allowing for detachable connection of cushion elements to be held thereon for comfortable use and seating. Said cushion elements may be detachably connectable to said back-rest element by hook and loop means or any other known sturdy and detachable methods of connection.

The device of this invention further providing handle elements. Said handle elements preferably comprising two parallel bars extending horizontally from said vertical frame extension from a right and left side towards the chassis frame. Said two parallel bards terminating with either a handle element. Said handle element may comprise a simple linear grip element (i.e. a vertically disposed round pole) or alternatively a circular ball-gripping element. Said linear gripping element would require a fisted grip therearound. Said ball-gripping element may comprise a smooth ball shaped component where it's top half circumference may be substantially or fully gripped by an adult hand. The round shape of a ball shaped grip component allows a controlled grip of the handle without a fisted hold. This is important to certain individuals who may suffer muscular or nerve damage in their hands. The rounded feature also allows for much easier repositioning of a hand grip during exercise by a sliding movement of the hand grip thereover.

The device of this invention providing a variety of modular components which can either be repositioned or detachably connectable in different configurations for a variety of exercise movements. The preferred embodiment of this device may achieve the following variety of focused weight exercises: 1) chest exercises, 2) back exercises, 3) arm exercises, 4) shoulder exercises, 5) quadricep exercises, 6) hamstring exercises, 7) bicep exercises, 8) and tricep exercises. Specific types of exercise motions may comprise the following without limitations: 1) leg press, 2) row, 3) squat, 4) curl, 5) pull down, 6) chess press, 7) bench dip, 8) abdominal crunch. Other exercise motions not otherwise listed here are achievable by simple reconfiguration of the device herein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 provides a right side perspective view of the invention according to a preferred embodiment as illustrated.

FIG. 2 provides a right side perspective view of the invention according to a preferred embodiment as illustrated.

FIG. 3 provides a partial top perspective view of the internal rear end portion of the invention according to a preferred embodiment of this invention.

FIG. 4 provides a partial top perspective view of the internal front end portion of the invention according to a preferred embodiment of this invention.

FIG. 5 provides a right side perspective view of the invention according to a preferred embodiment as illustrated.

DETAILED DESCRIPTION OF THE DRAWINGS

The invention herein specifically comprising the following elements, as illustrated in part by the referenced figures. The illustrations and figures herein serve to explain certain aspects of the described invention and should not be read to limit the scope of this invention. Other embodiments will be understood to be within the scope of this invention according to the description provided herein.

The device of this invention according to a preferred embodiment as illustrated in FIGS. 1 through 4, specifically as shown in FIGS. 1 and 2, comprises the following elements: A hollow geometrically shaped body horizontally (also referred to as the chassis frame) 101 disposed and seatable on a ground surface, a rotatable resting element 102, a vertical platform 103, and optionally a digital panel 104 attached to a rotatable digital panel arm 105. Said hollow geometrically shaped body or alternatively referenced as chassis frame or chassis body 101 having a front 106, rear 107, top 108, bottom 109, right 110, and left side 111 surfaces. Said top 108, bottom 109, right 110, and left 111 sides surfaces forming the length of the device which is longer than its said cross-sectional width, in total having a substantially rectangular shape. The length of said chassis frame may be any length but is preferably 6.5 feet long (78 inches) or alternatively a preferred length of under 8 feet long. The height of side surfaces may be up to 36 inches but is preferably 11 inches tall according to the preferred embodiment of this invention. Said front 106, rear 107, top 108, bottom 109, right 110, and left 111 side surfaces having an external surface 112 facing the external environment and an internal surface facing the internal space within said hollow geometrically shaped body 101. The width of said top 108 and bottom 109 surfaces may be up to 36 inches wide but is preferably 13 inches wide according to the preferred embodiment of this invention. Said hollow geometrically shaped body 101, comprising said front 106, rear 107, top 108, bottom 109, right 110, and left 111 side surfaces of this preferred embodiment comprising the chassis body (or alternatively referred to as the chassis frame) 101 of this invention.

Said rotatable resting element 102 comprising a planar panel 115 of substantially similar cross-sectional width as said top surface 108 of said chassis frame 101 and rearwardly disposed within the rear half along the length of said chassis frame 101. Said planar panel 115 of said resting element 102 having a length that is greater than its width. Said length comprising a left 116 and right side 117 parallel to the left 111 and right 110 sides of said chassis frame. Said planar panel 115 terminating at a top 118 and bottom 119 side. Said top side 118 of said planar panel element 115 terminating beyond the rear end 107 of said chassis frame 101 while the bottom end 119 terminates within the rearward half of said top surface of said chassis frame 101. A rotating mechanism comprising a bar 120 sleeved through perforations 121 along the left 111 and right 110 side surfaces of said chassis frame 101. Said planar panel 115 rotatable along a vertical path over the top side surface 108 of said chassis frame 101 within a substantially 180 degrees rotation.

Said chassis frame according to a preferred embodiment of this invention according to FIGS. 1 and 2 having perforations therethrough between its right 110 and left 111 side surfaces in matching form, dimension, and design to each enable a narrow pipe or bar to snuggly fit or sleeve therethrough in straight perpendicular manner between said right 110 and left 111 side surfaces. The perforations may comprise any pattern but should sufficiently match and mirror each other between said right 110 and left 111 sides to enable any linear bar or pipe to fit therethrough in substantially horizontal fashion, whether or not perpendicular in nature. The additional purpose of having perforations throughout the chassis frame is to remove excess weight without harming the structural integrity and sturdiness of the frame. This is highly beneficial for purposes of achieving lower cost in shipping and distribution of the inventive device to customers.

The purpose for fitting a bar through the chassis frame 101 between said left 111 and right 110 side surfaces is to create additional leverage, repositioning of parts, or introduction of additional tool elements. For example, as shown in FIGS. 1 and 2, linear bars 120 located along the bottom rearward half of said chassis frame serves to block rotation of said resting element 102, allowing the resting element 102 to maintain a substantially vertical position. Depending on the position of said linear bar 120, the resting element 102 may be disposed in a forward direction or rearward direction. A forwardly angled vertical position of said resting element 102 creates a back rest for the user who may be seated facing rearward on said chassis frame 101. Likewise, a rearwardly angled vertical position of said resting element 102 creates a back rest for the user who may be seated facing forward on said chassis frame 101. According to a preferred embodiment of this invention, a radially disposed series 122 or plurality of perforations are provided directly below the bottom side of said planar panel along the right 110 and left 111 side surfaces of said chassis, allowing for angular adjustment of the vertical positioning of said planar panel 115. The diameter or length of each perforation of said radially disposed series 122 of perforation is preferably 0.375 inches, but may be any greater or lesser diameter to achieve its intended purpose. Larger circular perforations 123 are preferably up to 1.76 inches in diameter. Even further, perforations may comprise any geometric shape and may have a length or diameter up to the width, height, or length of said chassis body to serve any variety of functional or aesthetic purposes as described herein.

The internal space of said chassis frame according to FIGS. 3 and 4 of the preferred embodiment containing the following elements: A motor drive 401, a linear actuator 402 which may comprise a threaded screw element, two parallel guide tracks 403, a carriage 301 seated over said two parallel guide tracks 403. Said linear actuator 402 comprising a length of threaded screw with any preferred length between one (1) to 5 (five) feet, said linear actuator 402 being disposed centrally along the front half of said chassis frame 404. Said linear actuator 302 having a first end 303 closer to the front end of said chassis frame and a second end farther 304 away from the front end of said chassis frame. Said linear actuator 402 connected to a motor drive 401 wherein said motor drive 401 is electrically driven to rotate in two opposing directions by threaded screw element. The driven movement of said motor drive 401 causing said threaded screw element 402 to rotate in either of two opposing direction. A carriage 301 is detachably connected to said linear actuator 402 at the lower end of said carriage 301. Said connection may be by threaded screw and bolt connection, hook style connection, clip style connection, pneumatic style connection, or any known means for a removable and secure positioning of said carriage 301 on said linear actuator 302 wherein said carriage is rollably seated on either said two parallel guide tracks 305. The top surface 306 of said carriage element 301 is further attachable to optional tools by detachable connection means (i.e. threaded screw means, clamping means, hook means, etc.). Said optional tools extending beyond the top or external surfaces of said chassis frame from said carriage 301 and interacts with the user by being moved in either a forward or rearward direction along the front half of said chassis frame.

Said carriage element 301 further having roller elements (not shown in the illustrations) on its left 307 and right 308 sides that each rests within a guide track 305 along the internal right and left surfaces of said chassis frame 309. Said carriage element 301 traveling along said centrally disposed linear actuator 302 and stabilized by roller elements fitted within each said right and left side of said two parallel guide tracks 305, traversing smoothly in either forward or rearward direction along the length of said chassis frame 309. Said two parallel guide tracks 305 at either right and left sides of said chassis frame 309 positioned in parallel manner with said chassis frame 309 and with said centrally disposed linear guide track 302 such that the parallel relationship enables a smooth and straight directional movement along the entire length of said linear actuator 302 by said carriage element 301. To facilitate smooth traversal along the length of said chassis frame and threaded screw drive of said linear actuator, a cross-bar 310 is fixedly attached at the rearward end of said two parallel guide track 305 across the cross-section of said chassis frame 309 to maintain the two parallel guide tracks 305 in fixed parallel position. This is especially important in lieu of high amount of usage by multiple different users or alternatively shifting weight of the user seated thereon, which could throw off parallel alignment of the guide tracks 305. A loss of parallel alignment of the two parallel guide tracks 305 would otherwise cause the traversal movement of the rollers along the guide track to seize. The cross-bar 310 in this case would serve to hold the two parallel guide tracks 305 in fixed parallel position in spite of pressures thereon and will further serve to block continued traversal of said carriage 301 beyond and past the terminal end of said two parallel guide tracks 305.

According to the preferred embodiment of this invention, a vertical panel 311 is removably connected to said carriage element 301, extending above the top surface 306 of said chassis frame 301 in perpendicular manner. As further shown in FIGS. 1 and 2, said vertical panel 201 having a front 202 and rear side 203. Said front side 202 of said vertical panel 201 facing towards the rearward direction of said chassis frame. Said front side 202 of said vertical panel 201 further being flat and planar and is of rigid construct. The vertical panel 201 in this case provides sufficient surface space to allow a user to position their legs in a substantially upward and horizonal position, pushing against said vertical panel as it is moving towards the user who is in a seated position. The rear side 203 as well as the perimeter edge 204 of said vertical panel 201 may further have hook elements attached thereto or alternatively, perforations 205 therethrough, that allows straps to be connected or sleeved through. The straps would be pulled away with the vertical panel 201 allowing the user to accomplish stretching exercises. The vertical panel 201 is removably connected to said carriage and may be removed at any time. Said carriage may be interchangeably connected to any other extension elements, including without limitations poles, hooks, seating elements, etc.

The vertical panel according to a preferred embodiment of this invention as shown in FIGS. 1 and 2 further having two arm extensions 206, each arm extension of said two arm extensions 206 attached to either the right 207 or left side 208 of said vertical panel 201 and protruding towards the rear side 208 of said chassis frame 209. Said arm extension 206 terminating with a substantially perpendicular L shaped bend or L-attachment 210. Said L shaped bend or L-attachment 210 creating a handle element for a fisted grip therearound. Said L shaped bend or L-attachment 210 is detachably connectable to each said arm extension 206 and may be radially adjusted for a preferred gripping position. Further, said L shaped bend or L-attachment 210 may allow for attachment of an additional gripping element. Said additional gripping element 211 of the preferred embodiment of this invention comprising a round or ball-shaped gripping element 211 that is removably attachable to said L shaped bend or L-attachment 210. Said ball-shaped gripping element 211 having size substantially equal to or smaller than the size of an adult human user's hand such that the user's hand may comfortably hold onto said ball-shaped gripping element and comfortably adjust position thereon.

The preferred embodiment of this invention as shown in FIGS. 1 and 2 further providing the optional element of a digital panel 212. Said digital panel 212 connectable to a rotatable bar 213 that extends at a vertical angle in an upward and forward direction from said chassis frame 209. Said rotatable bar 213 may be disposed at an angle towards the front or rear end of said chassis frame 209. Said rotatable bar 213 having a bottom end 214 attached to said chassis frame 209 and a top end 215 terminating above said chassis frame 209, said top end 215 connectable to said digital panel 212. Said rotatable bar 213 having a length that extends beyond the height of said chassis frame 209 to be viewable at eye level or above eye level by said user in seated position on said chassis frame 209. Said digital panel 213 being connectable to the top end 215 of said rotatable bar 213 or anywhere along the top half of said rotatable bar 213 such that said digital panel 212 is viewable by said user in either forward or rearward seated position by rotation of said rotatable bar 212 at a forward or rearward angle on said chassis frame 209. Information from said motor drive is translated into digital signals and receivable by said digital panel for further configuration into viewable and readable information regarding the user's performance metrics.

The preferred embodiment of this invention further providing additional perforations 216 along bottom edge of the right and left side surfaces of said chassis frame 209. Said perforations allowing for cross bars 217 to be removably sleevable there through and extending beyond the right and left side surfaces, serving as a foot rest or foot leverage 217 for the user.

The overall weight of the device according to the preferred embodiment described herein and as illustrated is as follows: said chassis frame comprising the front, rear, left side, right side, top side, and bottom side surfaces with perforations as illustrated including said internal components of the linear actuator and motor drive system having an approximate weight of 150 pounds. Said carriage element including the vertical panel comprising approximately 60 pounds. Said back rest element including perforations and cushion elements as illustrated having a total weight of approximately 20 pounds. Said digital panel with arm extension having a total weight of approximately 8 pounds. The total weight of the device described herein as illustrated is approximately 250 pounds. The total surface area of all said perforations disposed along the surfaces of said chassis frame, said rotatable resting element, and said external platform is at least 0.5% or above the cumulative surface area of said chassis frame, rotatable resting element, and external platform.

Additional embodiments by way of perforations, connections, extensions, or attachments that enables additional optional configurations to the device herein, not otherwise shown in the illustrations or otherwise explicitly described herein, remains within the contemplated scope of this invention. The contemplated scope of this invention comprising a single unitary device that is adjustable to a plurality of configurations that enables full range and full body concentric and eccentric exercises by manner of a variable motor driven resistance force.

The types of exercises contemplated by this invention comprising those described herein without limitations and may include additional exercise options not otherwise disclosed but falling within the scope of this invention as described herein. FIG. 1 provides illustration of the chassis body 101 with the back rest 102 positioned in a forward configuration (said back rest 102 angled towards the rear of said chassis frame 101). In this case, the user would be seated facing towards the front end of said chassis frame 101. Any of a plurality of exercises may be achieved, which includes without limitations leg press, chess press, and rowing exercises.

Said rowing exercise is achievable by pulling against a strap that is removably connected to the base of said vertical platform 103 (possibly by hook and clip or latching means), said vertical platform 103 moving in a forward direction along said chassis frame 101.

Said chess press exercise is achieved by pushing against the handle elements 124 of said vertical platform 103 as it is moving rearward along said chassis frame. Said leg press exercise is achievable by pushing against said vertical platform 103 while it is moving rearward along said chassis frame 101, pushing being achieved by the user's legs.

According a preferred embodiment of the invention as illustrated in FIG. 5, the back rest element 502 may further be positioned at complete horizontal position flushly over the top surface 503 of the chassis body 501. Said back rest element may further provide a detachable leg support element 504 which helps to prop said resting element upward from the ground surface in sturdy position against the weight of the user. The detachable leg support helps to provide additional leverage In this case, the linear bar that was used to hold the back rest 502, at an upward angle is removed, allowing the back rest 502 to lay completely flat. Any plurality of exercises may be achieved, which includes without limitations squat, curl, and pull-down exercises.

Said squat exercise according is achievable by the user laying in full horizontal position on said back rest element and pushing his or her legs against said vertical platform as said vertical platform moves towards the user in rearward direction.

Said curl exercise is achievable by the user laying in full horizontal position on said back rest element and pulling on a strap element attached to said vertical platform while said vertical platform moves towards the front end of said chassis frame away from said user.

Said pull-down exercise is achievable by the user laying in full horizontal position on said back rest element, the user's head facing towards the front end of said chassis frame. In this case, the user pulls on the strap element, which is connected to the vertical platform as said vertical platform moves away from said user, towards the front end of said chassis frame.

FIG. 2 provides illustrations of the chassis body 101 with the back rest 102 positioned in rearward configuration (angled towards the front end of said chassis frame). In this case, the user is seated on said chassis frame 101, facing towards its rear end. Any plurality of exercises may be achieved in this position, including without limitations, dip, chess press, and abdominal exercises.

Said dip exercise is achievable by pulling a strap element in a downward direction. In this case, said strap element is connected to said vertical platform while said vertical platform moves away from the user towards the front end of said chassis frame.

Said chess press exercise is achievable in similar manner as said dip exercise, except the user would be pulling on said strap in an upwardly angled direction.

Said abdominal exercise is achievabable as well in similar manner as either said dip or chess press exercises described above, except that the straps would be leveraged over the user's shoulders, and said user would be pushing his or whole upper body downward.

Other features, advantages, and object of the present invention will become more apparent and be more readily understood from the following detailed description, which should be read in conjunction with the accompanying drawings. 

I claim the following invention:
 1. A motor-driven variable weight exercise device with adjustable chassis body comprising a chassis frame wherein said chassis frame having two parallel guide tracks, a linear actuator and motor drive, a carriage element, a external platform, a rotatable resting element, and removable cross-bars.
 2. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 further having perforations through its said chassis frame.
 3. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 further having perforations through its said rotatable resting element.
 4. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 further having perforations through its said chassis frame.
 5. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said carriage element is seated over said linear actuator and movably seated on said parallel guide tracks of said chassis frame.
 6. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said external platform comprising an external tool or an external extension.
 7. Said external extension according to claim 6 comprising a seating element or a vertical panel removably connectable to said carriage element.
 8. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said rotatable resting element is hingely connected to said chassis frame, is rotatable over top said chassis frame within 180 degrees of horizontal, and may be locked into an angular position over top said chassis frame.
 9. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said chassis frame having a left side and right side surface, said left and right side surfaces having a plurality of radially disposed perforations that are in mirror position between said left and right side surfaces, said plurality of radially disposed perforations of said left and right side surfaces of said chassis being disposed below said rotatable resting element.
 10. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said chassis frame having a front end and a rear end, such that said rotatable resting element is positioned towards the rear end of said chassis frame and said carriage is positioned towards the front end of said chassis frame.
 11. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said chassis frame having an internal cavity space such that said linear actuator, motor drive, and carriage elements are held within the internal cavity space in interconnected manner.
 12. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 is remotely operable.
 13. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 having a removably detachable digital panel, said removably detachable panel in communication with said linear actuator and motor drive to provide user performance information through digital preconfigured software means.
 14. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 is controllable by said digital panel of claim
 13. 15. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said device comprising said chassis frame, rotatable resting element, carriage, linear actuator and motor drive, and external extension being under 300 pounds in total and wherein the length of said chassis frame is under 100 inches.
 16. The total surface area of all said perforations according to claim 4 that are disposed along the surfaces of said chassis frame, said rotatable resting element, and said external platform is at least 0.5% or above the cumulative surface area of said chassis frame, rotatable resting element, and external platform.
 17. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said external extension comprising a vertical platform, said vertical platform having a planar surface facing towards the rear end of said chassis frame, said vertical platform further having two arm extensions each protruding from the left and right sides of said vertical platform and parallel to the right and left sides of said chassis frame along the length of said chassis frame, each arm extension of said two arm extensions terminating with a perpendicularly disposed handle element.
 18. Each said perpendicularly disposed handle element of claim 17 further terminating with a round gripping element, said round gripping element may be fixedly connected or removably connectable to each said perpendicularly disposed handle element.
 19. Said motor-driven variable weight exercise device with adjustable chassis body of claim 1 wherein said external platform comprising an external tool, said external tool is removably attachable to one or more flexible strap, band, chain, rope in secure manner. 